EduSahara™ Assignment
Name : Median of Raw Data
Chapter : Mean and Median of Ungrouped Data
Grade : ICSE Grade IX
License : Non Commercial Use
Question
1
1.
The scores obtained by 7 students in a test are given below. Find the median.
16
19
8
3
2
2
5
(i)
19
(ii)
2
(iii)
5
(iv)
17
(v)
7
6
7
Question
2
2.
Find the median of all prime numbers between 30 and 60.
(i)
42
(ii)
45
(iii)
40
(iv)
44
(v)
43
Question
3
3.
Find the median of all the factors of 40.
(i)
25
4
(ii)
15
2
(iii)
13
2
(iv)
11
2
(v)
7
Question
4
4.
Find the median of first 9 whole numbers.
(i)
5
(ii)
7
(iii)
1
(iv)
3
(v)
4
Question
5
5.
Find the median of all the factors of 20.
(i)
17
4
(ii)
11
2
(iii)
9
2
(iv)
5
(v)
7
2
Question
6
6.
Find the median of the first 15 odd numbers.
(i)
16
(ii)
14
(iii)
18
(iv)
15
(v)
12
Question
7
7.
Find the median of the first 20 even numbers.
(i)
19
(ii)
21
(iii)
20
(iv)
22
(v)
24
Question
8
8.
The marks obtained by 15 students in a test are given below. Find their median marks.
27
30
36
26
23
22
33
36
40
18
28
28
43
19
37
(i)
30
(ii)
26
(iii)
28
(iv)
27
(v)
29
Question
9
9.
Heights of 14 students (in cm) are given below. Find the median height.
135
129
143
137
130
155
164
131
135
131
137
128
171
137
(i)
138
cm
(ii)
135
cm
(iii)
134
cm
(iv)
136
cm
(v)
137
cm
Question
10
10.
Heights of 11 plants (in cm) are given below. Find the median height.
55
56
64
63
89
66
75
91
61
61
60
(i)
62
cm
(ii)
64
cm
(iii)
61
cm
(iv)
65
cm
(v)
63
cm
Question
11
11.
Ages of 11 students (in years) are given below. Find the median age.
14
13
15
14
14
14
11
10
10
11
12
(i)
15
years
(ii)
14
years
(iii)
11
years
(iv)
12
years
(v)
13
years
Question
12
12.
Rainfall of 12 days (in mm) are given below. Find the median rainfall.
11
7
13
15
10
5
8
7
9
5
15
13
(i)
10
mm
(ii)
23
2
mm
(iii)
19
2
mm
(iv)
21
2
mm
Question
13
13.
Scores of 13 students are given below. Find the median score.
79
85
81
75
88
71
84
82
76
87
84
90
71
(i)
81
(ii)
82
(iii)
80
(iv)
83
(v)
84
Question
14
14.
Temperatures of 15 days (in °C) are given below. Find the median temperature.
26
30
26
34
29
27
31
26
34
27
31
34
35
26
27
(i)
29
°C
(ii)
27
°C
(iii)
28
°C
(iv)
30
°C
(v)
31
°C
Question
15
15.
Weights of 11 students (in kg) are given below. Find the median weight.
57
46
57
59
41
48
55
42
52
50
46
(i)
52
kg
(ii)
51
kg
(iii)
48
kg
(iv)
50
kg
(v)
49
kg
Question
16
16.
Daily wages of 13 labourers (in ₹) are given below. Find the median wage.
348
357
322
361
360
319
443
457
373
328
366
375
500
(i)
₹
362.00
(ii)
₹
360.00
(iii)
₹
361.00
(iv)
₹
363.00
(v)
₹
359.00
Question
17
17.
The observations of an ungrouped data are
x
1
,
x
2
,
2x
1
and
x
1
<
x
2
<
2x
1
.
If the mean and median of the data are equal to
24
,
find the observations of the data
(i)
32
,
24
,
64
(ii)
20
,
24
,
36
(iii)
16
,
24
,
32
(iv)
17
,
24
,
34
Question
18
18.
The observations of an ungrouped data are
x
1
,
x
2
,
x
3
and
x
1
<
x
2
<
x
3
.
If the mean and median of the data are
24
and
16
respectively and
x
3
-
x
1
=
40
,
find
x
1
,
x
2
,
x
3
(i)
12
,
16
,
52
(ii)
16
,
16
,
96
(iii)
10
,
16
,
50
(iv)
8
,
16
,
48
Question
19
19.
Given an even number of random samples with the middle two samples as
x +
23
and x +
24
and the median as
29
1
2
,
find the value of x.
(i)
5
(ii)
4
(iii)
7
(iv)
9
(v)
6
Assignment Key
1) (iii)
2) (v)
3) (iii)
4) (v)
5) (iii)
6) (iv)
7) (ii)
8) (iii)
9) (iv)
10) (v)
11) (v)
12) (iii)
13) (ii)
14) (i)
15) (iv)
16) (iii)
17) (iii)
18) (iv)
19) (v)
